./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:12:22,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:12:22,807 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 23:12:22,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:12:22,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:12:22,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:12:22,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:12:22,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:12:22,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:12:22,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:12:22,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:12:22,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:12:22,891 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:12:22,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:12:22,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:12:22,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:12:22,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:12:22,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:12:22,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:12:22,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:12:22,896 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:12:22,897 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:12:22,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:12:22,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:12:22,900 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:12:22,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:12:22,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:12:22,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:12:22,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:12:22,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:12:22,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:12:22,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:12:22,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:12:22,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:12:22,906 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:12:22,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:12:22,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:12:22,907 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:12:22,907 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b1197714500d659d0acf4ebb2204b824a1c828702d044651e5c066ddbe97af [2023-11-06 23:12:23,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:12:23,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:12:23,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:12:23,436 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:12:23,437 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:12:23,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2023-11-06 23:12:26,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:12:27,141 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:12:27,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/sv-benchmarks/c/termination-memory-alloca/ex3a-alloca.i [2023-11-06 23:12:27,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/data/da56bd08a/3f9648979fdd4d3bb5df56e9b389cdb6/FLAGb4e36775a [2023-11-06 23:12:27,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/data/da56bd08a/3f9648979fdd4d3bb5df56e9b389cdb6 [2023-11-06 23:12:27,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:12:27,183 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:12:27,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:12:27,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:12:27,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:12:27,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452d19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27, skipping insertion in model container [2023-11-06 23:12:27,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:12:27,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:12:27,593 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:12:27,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:12:27,675 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:12:27,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27 WrapperNode [2023-11-06 23:12:27,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:12:27,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:12:27,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:12:27,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:12:27,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,753 INFO L138 Inliner]: procedures = 111, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2023-11-06 23:12:27,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:12:27,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:12:27,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:12:27,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:12:27,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:12:27,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:12:27,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:12:27,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:12:27,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (1/1) ... [2023-11-06 23:12:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:12:27,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:27,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:12:27,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:12:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:12:27,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:12:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:12:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:12:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:12:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:12:28,059 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:12:28,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:12:28,222 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:12:28,229 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:12:28,229 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:12:28,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:28 BoogieIcfgContainer [2023-11-06 23:12:28,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:12:28,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:12:28,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:12:28,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:12:28,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:12:27" (1/3) ... [2023-11-06 23:12:28,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45990212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:12:28, skipping insertion in model container [2023-11-06 23:12:28,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:27" (2/3) ... [2023-11-06 23:12:28,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45990212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:12:28, skipping insertion in model container [2023-11-06 23:12:28,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:28" (3/3) ... [2023-11-06 23:12:28,245 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3a-alloca.i [2023-11-06 23:12:28,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:12:28,272 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 23:12:28,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:12:28,348 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a1a5af6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:12:28,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 23:12:28,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:28,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 23:12:28,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:28,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:12:28,365 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:28,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:28,373 INFO L85 PathProgramCache]: Analyzing trace with hash 889569447, now seen corresponding path program 1 times [2023-11-06 23:12:28,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:28,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386201792] [2023-11-06 23:12:28,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:28,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:28,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:28,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644983156] [2023-11-06 23:12:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:28,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:28,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:28,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:28,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:12:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:28,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:12:28,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:28,949 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-06 23:12:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:28,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:28,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:28,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386201792] [2023-11-06 23:12:28,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:28,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644983156] [2023-11-06 23:12:28,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644983156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:28,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:28,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:28,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479023165] [2023-11-06 23:12:28,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:28,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:12:28,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:29,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:12:29,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:29,033 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:29,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:29,128 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-11-06 23:12:29,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:12:29,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 23:12:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:29,138 INFO L225 Difference]: With dead ends: 26 [2023-11-06 23:12:29,138 INFO L226 Difference]: Without dead ends: 13 [2023-11-06 23:12:29,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:12:29,145 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:29,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:29,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-06 23:12:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-06 23:12:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-11-06 23:12:29,176 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2023-11-06 23:12:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:29,177 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-06 23:12:29,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:29,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-06 23:12:29,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 23:12:29,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:29,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:29,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:29,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:29,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:29,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849133, now seen corresponding path program 1 times [2023-11-06 23:12:29,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:29,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356392018] [2023-11-06 23:12:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:29,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:29,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:29,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479234910] [2023-11-06 23:12:29,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:29,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:29,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:29,429 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:29,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:12:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:29,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 23:12:29,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:29,609 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-06 23:12:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:29,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:29,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:29,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356392018] [2023-11-06 23:12:29,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:29,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479234910] [2023-11-06 23:12:29,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479234910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:29,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:29,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:29,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183869775] [2023-11-06 23:12:29,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:29,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:12:29,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:29,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:12:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:29,642 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:29,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:29,698 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-11-06 23:12:29,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:12:29,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 23:12:29,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:29,700 INFO L225 Difference]: With dead ends: 20 [2023-11-06 23:12:29,700 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 23:12:29,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:12:29,702 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:29,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 21 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 23:12:29,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2023-11-06 23:12:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:29,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-11-06 23:12:29,708 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2023-11-06 23:12:29,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:29,708 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-06 23:12:29,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-06 23:12:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 23:12:29,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:29,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:29,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:29,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:29,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:29,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908715, now seen corresponding path program 1 times [2023-11-06 23:12:29,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:29,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874095793] [2023-11-06 23:12:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:29,938 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:29,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064559554] [2023-11-06 23:12:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:29,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:29,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:29,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:29,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:12:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:30,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:12:30,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:30,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:30,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:30,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:30,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874095793] [2023-11-06 23:12:30,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:30,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064559554] [2023-11-06 23:12:30,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064559554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:30,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:30,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:30,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686825938] [2023-11-06 23:12:30,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:30,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:12:30,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:30,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:12:30,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:30,043 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:30,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:30,057 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2023-11-06 23:12:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:12:30,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 23:12:30,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:30,059 INFO L225 Difference]: With dead ends: 25 [2023-11-06 23:12:30,059 INFO L226 Difference]: Without dead ends: 11 [2023-11-06 23:12:30,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:30,063 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:30,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:30,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-06 23:12:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-06 23:12:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-06 23:12:30,070 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-06 23:12:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:30,071 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-06 23:12:30,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-06 23:12:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 23:12:30,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:30,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:30,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:30,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:30,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:30,279 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:30,279 INFO L85 PathProgramCache]: Analyzing trace with hash 177748329, now seen corresponding path program 1 times [2023-11-06 23:12:30,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:30,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529617963] [2023-11-06 23:12:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:30,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:30,321 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:30,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647259738] [2023-11-06 23:12:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:30,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:30,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:30,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:30,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 23:12:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:30,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 23:12:30,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:30,507 INFO L322 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-11-06 23:12:30,508 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2023-11-06 23:12:30,523 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-06 23:12:30,558 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-06 23:12:30,608 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-11-06 23:12:30,623 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 23:12:30,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:30,679 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 23:12:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:30,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:30,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:30,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529617963] [2023-11-06 23:12:30,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:30,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647259738] [2023-11-06 23:12:30,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647259738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:30,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:30,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:30,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693624419] [2023-11-06 23:12:30,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:30,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:30,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:30,690 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:30,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:30,728 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2023-11-06 23:12:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:12:30,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 23:12:30,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:30,729 INFO L225 Difference]: With dead ends: 20 [2023-11-06 23:12:30,729 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 23:12:30,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:30,731 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:30,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:30,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 23:12:30,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-11-06 23:12:30,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:30,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-06 23:12:30,736 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2023-11-06 23:12:30,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:30,737 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-06 23:12:30,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:30,737 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-06 23:12:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 23:12:30,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:30,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:30,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:30,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:30,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:30,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:30,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1215230959, now seen corresponding path program 1 times [2023-11-06 23:12:30,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:30,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487701544] [2023-11-06 23:12:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:30,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:30,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:30,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602989206] [2023-11-06 23:12:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:30,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:30,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:30,994 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:31,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 23:12:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:31,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 23:12:31,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:31,128 INFO L322 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-11-06 23:12:31,129 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2023-11-06 23:12:31,142 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-06 23:12:31,159 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-06 23:12:31,232 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:31,233 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-06 23:12:31,237 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-06 23:12:31,257 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 23:12:31,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:31,347 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2023-11-06 23:12:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:31,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:31,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:31,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487701544] [2023-11-06 23:12:31,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:31,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602989206] [2023-11-06 23:12:31,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602989206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:31,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:31,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:31,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814199250] [2023-11-06 23:12:31,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:31,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:31,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:31,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:31,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:31,366 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:31,421 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-11-06 23:12:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:31,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 23:12:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:31,422 INFO L225 Difference]: With dead ends: 19 [2023-11-06 23:12:31,423 INFO L226 Difference]: Without dead ends: 18 [2023-11-06 23:12:31,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:31,424 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:31,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:12:31,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-06 23:12:31,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-06 23:12:31,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-06 23:12:31,429 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2023-11-06 23:12:31,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:31,429 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-11-06 23:12:31,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:31,430 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-06 23:12:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 23:12:31,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:31,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 23:12:31,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:31,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:31,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:31,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:31,637 INFO L85 PathProgramCache]: Analyzing trace with hash -326396970, now seen corresponding path program 1 times [2023-11-06 23:12:31,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:31,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899064514] [2023-11-06 23:12:31,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:31,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:31,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:31,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768821493] [2023-11-06 23:12:31,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:31,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:31,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:31,660 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:31,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 23:12:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:31,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 23:12:31,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:31,757 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 23:12:31,812 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:12:31,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:31,869 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-06 23:12:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:31,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:12:31,898 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_127 (Array Int Int))) (< 0 (+ 2147483650 (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_127) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|)))) is different from false [2023-11-06 23:12:31,924 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:12:31,924 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2023-11-06 23:12:31,928 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2023-11-06 23:12:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2023-11-06 23:12:31,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899064514] [2023-11-06 23:12:31,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768821493] [2023-11-06 23:12:31,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768821493] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:12:31,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:12:31,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 23:12:31,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125528704] [2023-11-06 23:12:31,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:12:31,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:12:31,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:12:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=38, Unknown=1, NotChecked=12, Total=72 [2023-11-06 23:12:31,968 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:32,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:32,007 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-06 23:12:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:32,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-06 23:12:32,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:32,009 INFO L225 Difference]: With dead ends: 18 [2023-11-06 23:12:32,009 INFO L226 Difference]: Without dead ends: 17 [2023-11-06 23:12:32,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=46, Unknown=1, NotChecked=14, Total=90 [2023-11-06 23:12:32,011 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:32,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2023-11-06 23:12:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-06 23:12:32,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-06 23:12:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-06 23:12:32,016 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2023-11-06 23:12:32,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:32,016 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-06 23:12:32,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-06 23:12:32,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 23:12:32,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:32,018 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-06 23:12:32,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:32,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:32,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:32,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:32,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1528371422, now seen corresponding path program 1 times [2023-11-06 23:12:32,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:32,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53182266] [2023-11-06 23:12:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:32,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:32,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:32,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069505703] [2023-11-06 23:12:32,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:32,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:32,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:32,256 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:32,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 23:12:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:32,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 23:12:32,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:32,382 INFO L322 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-11-06 23:12:32,382 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2023-11-06 23:12:32,392 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-06 23:12:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:32,425 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 23:12:32,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:32,455 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-11-06 23:12:32,479 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 23:12:32,530 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:12:32,573 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-06 23:12:32,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:32,652 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 23:12:32,663 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:32,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:12:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 5 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:32,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53182266] [2023-11-06 23:12:32,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069505703] [2023-11-06 23:12:32,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069505703] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:12:32,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:12:32,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-06 23:12:32,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807077377] [2023-11-06 23:12:32,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:12:32,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:12:32,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:12:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=56, Unknown=2, NotChecked=0, Total=90 [2023-11-06 23:12:32,919 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:33,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:33,082 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2023-11-06 23:12:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 23:12:33,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-06 23:12:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:33,086 INFO L225 Difference]: With dead ends: 39 [2023-11-06 23:12:33,086 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 23:12:33,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=80, Unknown=5, NotChecked=0, Total=132 [2023-11-06 23:12:33,088 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:33,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:12:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 23:12:33,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-06 23:12:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2023-11-06 23:12:33,100 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 16 [2023-11-06 23:12:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:33,101 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2023-11-06 23:12:33,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2023-11-06 23:12:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-06 23:12:33,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:33,103 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2023-11-06 23:12:33,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:33,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:33,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:33,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1585545937, now seen corresponding path program 2 times [2023-11-06 23:12:33,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:33,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808259191] [2023-11-06 23:12:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:33,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:33,356 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:33,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563723738] [2023-11-06 23:12:33,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:12:33,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:33,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:33,361 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:33,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 23:12:33,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:12:33,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:12:33,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-06 23:12:33,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:33,529 INFO L322 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-11-06 23:12:33,530 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2023-11-06 23:12:33,543 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-06 23:12:33,566 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-06 23:12:33,606 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:33,607 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-06 23:12:33,610 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-06 23:12:33,624 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 23:12:33,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:33,686 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2023-11-06 23:12:35,727 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-06 23:12:35,773 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:12:35,814 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-06 23:12:35,863 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:12:35,907 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-06 23:12:35,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 23:12:36,003 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-06 23:12:36,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:36,059 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 23:12:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:36,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:12:36,147 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_225 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) is different from false [2023-11-06 23:12:36,297 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_22| Int) (v_ArrVal_223 (Array Int Int)) (v_ArrVal_225 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_22|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_22| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)))) is different from false [2023-11-06 23:12:36,502 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_23| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_22| Int) (v_ArrVal_221 (Array Int Int)) (v_ArrVal_223 (Array Int Int)) (v_ArrVal_225 (Array Int Int))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_221) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_23| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_22| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_23|) (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_22|))))) is different from false [2023-11-06 23:12:36,794 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_24| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_23| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_22| Int) (v_ArrVal_219 (Array Int Int)) (v_ArrVal_221 (Array Int Int)) (v_ArrVal_223 (Array Int Int)) (v_ArrVal_225 (Array Int Int))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |c_ULTIMATE.start_test_fun_#t~mem9#1| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_219) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_24| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_221) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_23| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_22| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_24|) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_23|) (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_22|)))))) is different from false [2023-11-06 23:12:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 40 times theorem prover too weak. 0 trivial. 20 not checked. [2023-11-06 23:12:37,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:37,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808259191] [2023-11-06 23:12:37,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:37,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563723738] [2023-11-06 23:12:37,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563723738] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:12:37,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:12:37,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-06 23:12:37,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494014459] [2023-11-06 23:12:37,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:12:37,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-06 23:12:37,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:37,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-06 23:12:37,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=173, Unknown=25, NotChecked=140, Total=462 [2023-11-06 23:12:37,180 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand has 22 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 22 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:38,271 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_22| Int) (v_ArrVal_223 (Array Int Int)) (v_ArrVal_225 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_22|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_22| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)))) (forall ((v_ArrVal_225 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647)) (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_24| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_23| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_22| Int) (v_ArrVal_219 (Array Int Int)) (v_ArrVal_221 (Array Int Int)) (v_ArrVal_223 (Array Int Int)) (v_ArrVal_225 (Array Int Int))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_219) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_24| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_221) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_23| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_22|) (< (select .cse2 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_24|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_22| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse3 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_23|)))))) (forall ((|v_ULTIMATE.start_test_fun_#t~mem9#1_23| Int) (|v_ULTIMATE.start_test_fun_#t~mem9#1_22| Int) (v_ArrVal_221 (Array Int Int)) (v_ArrVal_223 (Array Int Int)) (v_ArrVal_225 (Array Int Int))) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_221) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (let ((.cse5 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_23| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_test_fun_~c~0#1.base|))) (or (< (select .cse4 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_23|) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset| (+ |v_ULTIMATE.start_test_fun_#t~mem9#1_22| 1))) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| v_ArrVal_225) |c_ULTIMATE.start_test_fun_~c~0#1.base|) |c_ULTIMATE.start_test_fun_~c~0#1.offset|) 2147483647) (< (select .cse5 |c_ULTIMATE.start_test_fun_~c~0#1.offset|) |v_ULTIMATE.start_test_fun_#t~mem9#1_22|)))))) is different from false [2023-11-06 23:12:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:39,707 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2023-11-06 23:12:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-06 23:12:39,708 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 22 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2023-11-06 23:12:39,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:39,709 INFO L225 Difference]: With dead ends: 81 [2023-11-06 23:12:39,710 INFO L226 Difference]: Without dead ends: 80 [2023-11-06 23:12:39,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=252, Invalid=392, Unknown=78, NotChecked=270, Total=992 [2023-11-06 23:12:39,711 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 13 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 320 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:39,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 36 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 88 Invalid, 24 Unknown, 320 Unchecked, 0.5s Time] [2023-11-06 23:12:39,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-06 23:12:39,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-06 23:12:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.0126582278481013) internal successors, (80), 79 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:39,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2023-11-06 23:12:39,732 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 37 [2023-11-06 23:12:39,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:39,733 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2023-11-06 23:12:39,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 22 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2023-11-06 23:12:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-06 23:12:39,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:39,740 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1, 1] [2023-11-06 23:12:39,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:39,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:39,946 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 23:12:39,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1267083505, now seen corresponding path program 3 times [2023-11-06 23:12:39,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:39,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502130535] [2023-11-06 23:12:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:40,003 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:12:40,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043744364] [2023-11-06 23:12:40,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 23:12:40,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:40,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:40,012 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:12:40,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 23:12:40,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-06 23:12:40,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:12:40,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-06 23:12:40,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:40,282 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 23:12:40,473 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2023-11-06 23:12:40,536 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:12:40,681 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 18 [2023-11-06 23:12:40,784 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:12:41,061 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 18 [2023-11-06 23:12:41,410 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 23:12:43,553 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-06 23:12:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 197 proven. 34 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-06 23:12:43,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:12:43,887 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_335 (Array Int Int))) (< 99 (select (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) is different from false [2023-11-06 23:12:43,903 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_333 Int) (v_ArrVal_335 (Array Int Int))) (or (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< v_ArrVal_333 (* |c_ULTIMATE.start_test_fun_#t~mem7#1| |c_ULTIMATE.start_test_fun_#t~mem8#1|)))) is different from false [2023-11-06 23:12:43,929 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_333 Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_25| Int) (v_ArrVal_335 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse0 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_25| .cse1) (< v_ArrVal_333 (* .cse1 |v_ULTIMATE.start_test_fun_#t~mem8#1_25|)))))) is different from false [2023-11-06 23:12:44,341 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem8#1_25| Int) (v_ArrVal_333 Int) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_335 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (< v_ArrVal_333 (* .cse0 |v_ULTIMATE.start_test_fun_#t~mem8#1_25|)) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_25| .cse0) (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< .cse0 2))))) is different from false [2023-11-06 23:12:44,477 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_333 Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_25| Int) (v_ArrVal_331 Int) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_335 (Array Int Int))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_331)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (< v_ArrVal_333 (* .cse0 |v_ULTIMATE.start_test_fun_#t~mem8#1_25|)) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_25| .cse0) (< .cse0 2) (< v_ArrVal_331 (* |c_ULTIMATE.start_test_fun_#t~mem7#1| |c_ULTIMATE.start_test_fun_#t~mem8#1|)) (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse1 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)))))) is different from false [2023-11-06 23:12:44,693 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_333 Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_25| Int) (v_ArrVal_331 Int) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_335 (Array Int Int))) (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_331)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (.cse0 (select .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (< v_ArrVal_331 (* .cse0 |v_ULTIMATE.start_test_fun_#t~mem7#1_26|)) (< v_ArrVal_333 (* .cse1 |v_ULTIMATE.start_test_fun_#t~mem8#1_25|)) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_25| .cse1) (< .cse1 2) (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< |v_ULTIMATE.start_test_fun_#t~mem7#1_26| .cse0)))))) is different from false [2023-11-06 23:12:45,035 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_333 Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_25| Int) (v_ArrVal_331 Int) (v_ArrVal_329 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_335 (Array Int Int))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_331)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (.cse1 (select .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (< .cse0 2) (< |v_ULTIMATE.start_test_fun_#t~mem7#1_26| .cse1) (< v_ArrVal_333 (* .cse0 |v_ULTIMATE.start_test_fun_#t~mem8#1_25|)) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_25| .cse0) (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< v_ArrVal_331 (* .cse1 |v_ULTIMATE.start_test_fun_#t~mem7#1_26|))))))) is different from false [2023-11-06 23:12:45,239 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem8#1_25| Int) (v_ArrVal_333 Int) (v_ArrVal_331 Int) (v_ArrVal_329 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int) (v_ArrVal_327 Int) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_335 (Array Int Int))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_327)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse2 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_331)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (.cse1 (select .cse2 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (< |v_ULTIMATE.start_test_fun_#t~mem7#1_26| .cse0) (< v_ArrVal_331 (* .cse0 |v_ULTIMATE.start_test_fun_#t~mem7#1_26|)) (< v_ArrVal_333 (* .cse1 |v_ULTIMATE.start_test_fun_#t~mem8#1_25|)) (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse2 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< .cse1 2) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_25| .cse1) (< v_ArrVal_327 (* |c_ULTIMATE.start_test_fun_#t~mem7#1| |c_ULTIMATE.start_test_fun_#t~mem8#1|))))))) is different from false [2023-11-06 23:12:45,618 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_test_fun_#t~mem8#1_27| Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_25| Int) (v_ArrVal_333 Int) (v_ArrVal_331 Int) (v_ArrVal_329 (Array Int Int)) (|v_ULTIMATE.start_test_fun_#t~mem7#1_26| Int) (v_ArrVal_327 Int) (v_ArrVal_332 (Array Int Int)) (v_ArrVal_335 (Array Int Int))) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse5 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_327)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_329) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse4 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_331)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_332) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (let ((.cse0 (select .cse5 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (.cse1 (select .cse4 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (.cse2 (select .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (< v_ArrVal_327 (* .cse0 |v_ULTIMATE.start_test_fun_#t~mem8#1_27|)) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_27| .cse0) (< |v_ULTIMATE.start_test_fun_#t~mem7#1_26| .cse1) (< v_ArrVal_331 (* .cse1 |v_ULTIMATE.start_test_fun_#t~mem7#1_26|)) (< v_ArrVal_333 (* .cse2 |v_ULTIMATE.start_test_fun_#t~mem8#1_25|)) (< 99 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~x_ref~0#1.base| (store .cse3 |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset| v_ArrVal_333)) |c_ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |c_ULTIMATE.start_test_fun_~x_ref~0#1.base|) |c_ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< .cse2 2) (< |v_ULTIMATE.start_test_fun_#t~mem8#1_25| .cse2))))))) is different from false [2023-11-06 23:12:46,449 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:12:46,450 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 162 treesize of output 142 [2023-11-06 23:12:46,474 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 44 [2023-11-06 23:12:46,494 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2023-11-06 23:12:46,512 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-11-06 23:12:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 40 proven. 47 refuted. 1 times theorem prover too weak. 154 trivial. 143 not checked. [2023-11-06 23:12:47,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:47,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502130535] [2023-11-06 23:12:47,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:47,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043744364] [2023-11-06 23:12:47,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043744364] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:12:47,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:12:47,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 26 [2023-11-06 23:12:47,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391822257] [2023-11-06 23:12:47,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:12:47,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 23:12:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:47,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 23:12:47,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=199, Unknown=13, NotChecked=342, Total=650 [2023-11-06 23:12:47,231 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:54,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2023-11-06 23:12:55,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:55,908 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2023-11-06 23:12:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:12:55,912 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-11-06 23:12:55,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:55,913 INFO L225 Difference]: With dead ends: 80 [2023-11-06 23:12:55,913 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 23:12:55,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 131 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 9 IntricatePredicates, 2 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=164, Invalid=321, Unknown=13, NotChecked=432, Total=930 [2023-11-06 23:12:55,915 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:55,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 1 Unknown, 177 Unchecked, 3.4s Time] [2023-11-06 23:12:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 23:12:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 23:12:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:55,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 23:12:55,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2023-11-06 23:12:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:55,920 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:12:55,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 23:12:55,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 23:12:55,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-06 23:12:55,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-06 23:12:55,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-06 23:12:55,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-06 23:12:55,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:56,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:12:56,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 23:13:04,841 WARN L293 SmtUtils]: Spent 8.69s on a formula simplification. DAG size of input: 137 DAG size of output: 71 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-06 23:13:04,843 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 554) no Hoare annotation was computed. [2023-11-06 23:13:04,843 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 23:13:04,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 555) no Hoare annotation was computed. [2023-11-06 23:13:04,844 INFO L899 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2023-11-06 23:13:04,844 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 23:13:04,844 INFO L899 garLoopResultBuilder]: For program point L554-1(line 554) no Hoare annotation was computed. [2023-11-06 23:13:04,844 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 559 561) the Hoare annotation is: true [2023-11-06 23:13:04,845 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 23:13:04,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 554) no Hoare annotation was computed. [2023-11-06 23:13:04,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 555) no Hoare annotation was computed. [2023-11-06 23:13:04,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 23:13:04,845 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2023-11-06 23:13:04,845 INFO L899 garLoopResultBuilder]: For program point L555-1(line 555) no Hoare annotation was computed. [2023-11-06 23:13:04,846 INFO L899 garLoopResultBuilder]: For program point L553-1(line 553) no Hoare annotation was computed. [2023-11-06 23:13:04,846 INFO L899 garLoopResultBuilder]: For program point L553-3(lines 553 556) no Hoare annotation was computed. [2023-11-06 23:13:04,847 INFO L895 garLoopResultBuilder]: At program point L553-5(lines 553 556) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse2 (select (select |#memory_int| |ULTIMATE.start_test_fun_~c~0#1.base|) |ULTIMATE.start_test_fun_~c~0#1.offset|))) (let ((.cse0 (not (= |ULTIMATE.start_test_fun_~x_ref~0#1.base| |ULTIMATE.start_test_fun_~c~0#1.base|))) (.cse1 (<= 0 (+ .cse2 2147483648))) (.cse3 (select .cse5 |ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (or (and .cse0 .cse1 (<= .cse2 2) (exists ((v_arrayElimCell_41 Int) (v_arrayElimCell_39 Int) (|v_ULTIMATE.start_test_fun_#t~mem7#1_22| Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_21| Int)) (and (<= v_arrayElimCell_39 |v_ULTIMATE.start_test_fun_#t~mem8#1_21|) (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_22| v_arrayElimCell_41) .cse3) (<= (* |v_ULTIMATE.start_test_fun_#t~mem8#1_21| v_arrayElimCell_39) v_arrayElimCell_41) (<= v_arrayElimCell_41 |v_ULTIMATE.start_test_fun_#t~mem7#1_22|) (<= 2 v_arrayElimCell_39)))) (let ((.cse4 (store .cse5 |ULTIMATE.start_test_fun_~c~0#1.offset| 0))) (and .cse0 (exists ((v_DerPreprocessor_2 (Array Int Int))) (= (select (store (store |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_2) |ULTIMATE.start_test_fun_~c~0#1.base| .cse4) |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse5)) (= .cse2 0) (exists ((v_DerPreprocessor_8 (Array Int Int))) (= (select (store (store |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_8) |ULTIMATE.start_test_fun_~c~0#1.base| .cse4) |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse5)))) (and (exists ((v_arrayElimCell_41 Int) (v_arrayElimCell_39 Int) (|v_ULTIMATE.start_test_fun_#t~mem7#1_22| Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_23| Int) (v_arrayElimCell_43 Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_21| Int)) (and (<= v_arrayElimCell_39 |v_ULTIMATE.start_test_fun_#t~mem8#1_21|) (<= v_arrayElimCell_43 |v_ULTIMATE.start_test_fun_#t~mem8#1_23|) (<= (* |v_ULTIMATE.start_test_fun_#t~mem8#1_23| v_arrayElimCell_43) .cse3) (<= (* |v_ULTIMATE.start_test_fun_#t~mem8#1_21| v_arrayElimCell_39) v_arrayElimCell_41) (<= v_arrayElimCell_41 |v_ULTIMATE.start_test_fun_#t~mem7#1_22|) (<= (* |v_ULTIMATE.start_test_fun_#t~mem7#1_22| v_arrayElimCell_41) v_arrayElimCell_43) (<= 2 v_arrayElimCell_39))) .cse1 (forall ((v_ArrVal_335 (Array Int Int))) (< 99 (select (select (store |#memory_int| |ULTIMATE.start_test_fun_~c~0#1.base| v_ArrVal_335) |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|))) (<= .cse2 3)) (and (<= .cse2 1) .cse0 .cse1 (exists ((v_arrayElimCell_39 Int) (|v_ULTIMATE.start_test_fun_#t~mem8#1_21| Int)) (and (<= v_arrayElimCell_39 |v_ULTIMATE.start_test_fun_#t~mem8#1_21|) (<= (* |v_ULTIMATE.start_test_fun_#t~mem8#1_21| v_arrayElimCell_39) .cse3) (<= 2 v_arrayElimCell_39))))))) [2023-11-06 23:13:04,847 INFO L902 garLoopResultBuilder]: At program point test_fun_returnLabel#1(lines 547 558) the Hoare annotation is: true [2023-11-06 23:13:04,847 INFO L899 garLoopResultBuilder]: For program point L553-6(lines 553 556) no Hoare annotation was computed. [2023-11-06 23:13:04,852 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:04,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:13:04,873 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:04,875 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_2 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_2][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:04,875 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_8 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_8][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:04,875 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_23 : int, v_arrayElimCell_43 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_arrayElimCell_43 <= v_ULTIMATE.start_test_fun_#t~mem8#1_23) && v_ULTIMATE.start_test_fun_#t~mem8#1_23 * v_arrayElimCell_43 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= v_arrayElimCell_43) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:04,875 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_ArrVal_335 : [int]int :: 99 < #memory_int[~c~0!base := v_ArrVal_335][~x_ref~0!base][~x_ref~0!offset]) could not be translated [2023-11-06 23:13:04,876 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:04,885 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:04,885 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_2 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_2][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:04,886 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_8 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_8][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:04,886 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_23 : int, v_arrayElimCell_43 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_arrayElimCell_43 <= v_ULTIMATE.start_test_fun_#t~mem8#1_23) && v_ULTIMATE.start_test_fun_#t~mem8#1_23 * v_arrayElimCell_43 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= v_arrayElimCell_43) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:04,886 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_ArrVal_335 : [int]int :: 99 < #memory_int[~c~0!base := v_ArrVal_335][~x_ref~0!base][~x_ref~0!offset]) could not be translated [2023-11-06 23:13:04,894 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:04,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:13:04 BoogieIcfgContainer [2023-11-06 23:13:04,896 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:13:04,896 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:13:04,896 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:13:04,897 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:13:04,897 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:28" (3/4) ... [2023-11-06 23:13:04,899 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:13:04,910 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 23:13:04,910 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:13:04,911 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 23:13:04,911 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 23:13:04,980 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:13:04,980 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:13:04,981 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:13:04,981 INFO L158 Benchmark]: Toolchain (without parser) took 37798.54ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 126.1MB in the beginning and 161.6MB in the end (delta: -35.5MB). Peak memory consumption was 412.8kB. Max. memory is 16.1GB. [2023-11-06 23:13:04,982 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:13:04,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.39ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 110.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 23:13:04,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.27ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 108.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:13:04,983 INFO L158 Benchmark]: Boogie Preprocessor took 66.21ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 107.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:13:04,983 INFO L158 Benchmark]: RCFGBuilder took 410.40ms. Allocated memory is still 167.8MB. Free memory was 107.2MB in the beginning and 96.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:13:04,984 INFO L158 Benchmark]: TraceAbstraction took 36660.00ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 95.5MB in the beginning and 164.7MB in the end (delta: -69.2MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2023-11-06 23:13:04,985 INFO L158 Benchmark]: Witness Printer took 84.43ms. Allocated memory is still 201.3MB. Free memory was 164.7MB in the beginning and 161.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 23:13:04,987 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.39ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 110.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.27ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 108.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.21ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 107.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.40ms. Allocated memory is still 167.8MB. Free memory was 107.2MB in the beginning and 96.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 36660.00ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 95.5MB in the beginning and 164.7MB in the end (delta: -69.2MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. * Witness Printer took 84.43ms. Allocated memory is still 201.3MB. Free memory was 164.7MB in the beginning and 161.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && 2 <= v_arrayElimCell_39) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_2 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_2][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_8 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_8][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_23 : int, v_arrayElimCell_43 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_arrayElimCell_43 <= v_ULTIMATE.start_test_fun_#t~mem8#1_23) && v_ULTIMATE.start_test_fun_#t~mem8#1_23 * v_arrayElimCell_43 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= v_arrayElimCell_43) && 2 <= v_arrayElimCell_39) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_ArrVal_335 : [int]int :: 99 < #memory_int[~c~0!base := v_ArrVal_335][~x_ref~0!base][~x_ref~0!offset]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && 2 <= v_arrayElimCell_39) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && 2 <= v_arrayElimCell_39) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_2 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_2][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_8 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_8][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_23 : int, v_arrayElimCell_43 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_arrayElimCell_43 <= v_ULTIMATE.start_test_fun_#t~mem8#1_23) && v_ULTIMATE.start_test_fun_#t~mem8#1_23 * v_arrayElimCell_43 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= v_arrayElimCell_43) && 2 <= v_arrayElimCell_39) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_ArrVal_335 : [int]int :: 99 < #memory_int[~c~0!base := v_ArrVal_335][~x_ref~0!base][~x_ref~0!offset]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && 2 <= v_arrayElimCell_39) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 36.5s, OverallIterations: 9, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 505 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 361 IncrementalHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 54 mSDtfsCounter, 361 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 353 GetRequests, 247 SyntacticMatches, 15 SemanticMatches, 91 ConstructedPredicates, 15 IntricatePredicates, 2 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=8, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 198 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 402 FormulaSimplificationTreeSizeReductionInter, 8.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 184 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 318 ConstructedInterpolants, 98 QuantifiedInterpolants, 7108 SizeOfPredicates, 57 NumberOfNonLiveVariables, 860 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 550/936 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 553]: Loop Invariant [2023-11-06 23:13:05,017 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:05,020 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_2 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_2][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:05,020 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_8 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_8][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:05,020 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_23 : int, v_arrayElimCell_43 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_arrayElimCell_43 <= v_ULTIMATE.start_test_fun_#t~mem8#1_23) && v_ULTIMATE.start_test_fun_#t~mem8#1_23 * v_arrayElimCell_43 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= v_arrayElimCell_43) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:05,021 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_ArrVal_335 : [int]int :: 99 < #memory_int[~c~0!base := v_ArrVal_335][~x_ref~0!base][~x_ref~0!offset]) could not be translated [2023-11-06 23:13:05,021 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:05,023 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:05,027 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_2 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_2][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:05,027 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_DerPreprocessor_8 : [int]int :: #memory_int[~x_ref~0!base := v_DerPreprocessor_8][~c~0!base := #memory_int[~x_ref~0!base][~c~0!offset := 0]][~x_ref~0!base] == #memory_int[~x_ref~0!base]) could not be translated [2023-11-06 23:13:05,027 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_41 : int, v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem7#1_22 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_23 : int, v_arrayElimCell_43 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (((((v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_arrayElimCell_43 <= v_ULTIMATE.start_test_fun_#t~mem8#1_23) && v_ULTIMATE.start_test_fun_#t~mem8#1_23 * v_arrayElimCell_43 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= v_arrayElimCell_41) && v_arrayElimCell_41 <= v_ULTIMATE.start_test_fun_#t~mem7#1_22) && v_ULTIMATE.start_test_fun_#t~mem7#1_22 * v_arrayElimCell_41 <= v_arrayElimCell_43) && 2 <= v_arrayElimCell_39) could not be translated [2023-11-06 23:13:05,027 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_ArrVal_335 : [int]int :: 99 < #memory_int[~c~0!base := v_ArrVal_335][~x_ref~0!base][~x_ref~0!offset]) could not be translated [2023-11-06 23:13:05,028 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_39 : int, v_ULTIMATE.start_test_fun_#t~mem8#1_21 : int :: (v_arrayElimCell_39 <= v_ULTIMATE.start_test_fun_#t~mem8#1_21 && v_ULTIMATE.start_test_fun_#t~mem8#1_21 * v_arrayElimCell_39 <= #memory_int[~x_ref~0!base][~x_ref~0!offset]) && 2 <= v_arrayElimCell_39) could not be translated Derived loop invariant: (((((!((x_ref == c)) && (0 <= (*c + 2147483648))) && (*c <= 2)) || (!((x_ref == c)) && (*c == 0))) || ((0 <= (*c + 2147483648)) && (*c <= 3))) || (((*c <= 1) && !((x_ref == c))) && (0 <= (*c + 2147483648)))) RESULT: Ultimate proved your program to be correct! [2023-11-06 23:13:05,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2024c018-8b8a-4e16-8b46-f1190570a523/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE